I thought of trying to replicate the 630(i like the idea of keeping thing as retro as possible while the vintage parts are still around) but i stripped the color section from the schematic to make a little board that just plugs into the color socket on the 600rev d.
My thought for the data separator board were to
Data separator in or out
rdy line in or out
some proto sockets for motor control although i was reading some where that if using hexdos and hooking up the rtc and int its already set up
in software
making the board look as retro as possible to keep with the look
Hexdos anyone?
this is how mine is looking, im building from the bottom up